# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-db/postgresql-server/postgresql-server-9.0.1.ebuild,v 1.2 2011/01/25 15:07:06 hwoarang Exp $

EAPI="2"
PYTHON_DEPEND="python? 2"

# weird test failures.
RESTRICT="test"

WANT_AUTOMAKE="none"
inherit autotools eutils multilib python versionator

KEYWORDS="~alpha amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sh ~sparc ~x86 ~x86-fbsd"

DESCRIPTION="PostgreSQL server"
HOMEPAGE="http://www.postgresql.org/"

MY_PV=${PV/_/}
SRC_URI="mirror://postgresql/source/v${MY_PV}/postgresql-${MY_PV}.tar.bz2"
S=${WORKDIR}/postgresql-${MY_PV}

LICENSE="POSTGRESQL"
SLOT="$(get_version_component_range 1-2)"
LINGUAS="af cs de es fa fr hr hu it ko nb pl pt_BR ro ru sk sl sv tr zh_CN zh_TW"
IUSE="doc kernel_linux nls perl pg_legacytimestamp python selinux tcl uuid xml"

for lingua in ${LINGUAS}; do
	IUSE+=" linguas_${lingua}"
done

wanted_languages() {
	local enable_langs

	for lingua in ${LINGUAS} ; do
		use linguas_${lingua} && enable_langs+="${lingua} "
	done

	echo -n ${enable_langs}
}

RDEPEND="~dev-db/postgresql-base-${PV}:${SLOT}[pg_legacytimestamp=,nls=]
	perl? ( >=dev-lang/perl-5.6.1-r2 )
	python? ( dev-python/egenix-mx-base )
	selinux? ( sec-policy/selinux-postgresql )
	tcl? ( >=dev-lang/tcl-8 )
	uuid? ( dev-libs/ossp-uuid )
	xml? ( dev-libs/libxml2 dev-libs/libxslt )"
DEPEND="${RDEPEND}
	sys-devel/flex
	xml? ( dev-util/pkgconfig )"
PDEPEND="doc? ( ~dev-db/postgresql-docs-${PV} )"

pkg_setup() {
	enewgroup postgres 70
	enewuser postgres 70 /bin/bash /var/lib/postgresql postgres

	if use python; then
		python_set_active_version 2
	fi
}

src_prepare() {
	epatch "${FILESDIR}/postgresql-${SLOT}-common.3.patch" \
		"${FILESDIR}/postgresql-${SLOT}-server.3.patch"

	if use test; then
		sed -e "s|/no/such/location|${S}/src/test/regress/tmp_check/no/such/location|g" -i src/test/regress/{input,output}/tablespace.source
	else
		echo "all install:" > "${S}/src/test/regress/GNUmakefile"
	fi

	eautoconf
}

src_configure() {
	# eval is needed to get along with pg_config quotation of space-rich entities.
	eval econf "$(/usr/$(get_libdir)/postgresql-${SLOT}/bin/pg_config --configure)" \
		--disable-thread-safety \
		$(use_with perl) \
		$(use_with python) \
		$(use_with tcl) \
		$(use_with xml libxml) \
		$(use_with xml libxslt) \
		$(use_with uuid ossp-uuid) \
		--with-system-tzdata="/usr/share/zoneinfo" \
		--with-includes="/usr/include/postgresql-${SLOT}/" \
		--with-libraries="/usr/$(get_libdir)/postgresql-${SLOT}/$(get_libdir)" \
		"$(use_enable nls nls "$(wanted_languages)")"
}

src_compile() {
	local bd
	for bd in . contrib $(use xml && echo contrib/xml2); do
		PATH="/usr/$(get_libdir)/postgresql-${SLOT}/bin:${PATH}" \
			emake -C $bd -j1 || die "emake in $bd failed"
	done
}

src_install() {
	if use perl ; then
		mv -f "${S}/src/pl/plperl/GNUmakefile" "${S}/src/pl/plperl/GNUmakefile_orig"
		sed -e "s:\$(DESTDIR)\$(plperl_installdir):\$(plperl_installdir):" \
			"${S}/src/pl/plperl/GNUmakefile_orig" > "${S}/src/pl/plperl/GNUmakefile"
	fi

	for bd in . contrib $(use xml && echo contrib/xml2) ; do
		PATH="/usr/$(get_libdir)/postgresql-${SLOT}/bin:${PATH}" \
			emake install -C $bd -j1 DESTDIR="${D}" || die "emake install in $bd failed"
	done

	rm -rf "${D}/usr/share/postgresql-${SLOT}/man/man7/" "${D}/usr/share/doc/postgresql-${SLOT}/html"
	rm "${D}"/usr/share/postgresql-${SLOT}/man/man1/{clusterdb,create{db,lang,user},drop{db,lang,user},ecpg,pg_{config,dump,dumpall,restore},psql,reindexdb,vacuumdb}.1

	dodoc README HISTORY doc/{README.*,TODO,bug.template}

	dodir /etc/eselect/postgresql/slots/${SLOT}
	cat > "${D}/etc/eselect/postgresql/slots/${SLOT}/service" <<-__EOF__
		postgres_ebuilds="\${postgres_ebuilds} ${PF}"
		postgres_service="postgresql-${SLOT}"
	__EOF__

	newinitd "${FILESDIR}/postgresql.init-${SLOT}-r1" postgresql-${SLOT} || die "Inserting init.d-file failed"
	newconfd "${FILESDIR}/postgresql.conf-${SLOT}-r1" postgresql-${SLOT} || die "Inserting conf.d-file failed"

	keepdir /var/run/postgresql
	fperms 0770 /var/run/postgresql
	fowners postgres:postgres /var/run/postgresql
}

pkg_postinst() {
	eselect postgresql update
	[[ "$(eselect postgresql show)" = "(none)" ]] && eselect postgresql set ${SLOT}
	[[ "$(eselect postgresql show-service)" = "(none)" ]] && eselect postgresql set-service ${SLOT}

	ewarn "Please note that the standard location of the socket has changed from /tmp to"
	ewarn "/var/run/postgresql and you have to be in the 'postgres' group to access the"
	ewarn "socket. This can break applications which have the standard location"
	ewarn "hard-coded. If such an application links against the libpq, please reemerge"
	ewarn "it. If that doesn't help or the application accesses the socket without using"
	ewarn "libpq, please file a bug-report."
	ewarn
	ewarn "You can set PGOPTS='-k /tmp' in /etc/conf.d/postgresql-${SLOT} to restore the"
	ewarn "original location."
	ewarn

	elog "Before initializing the database, you may want to edit PG_INITDB_OPTS so that it"
	elog "contains your preferred locale and character encoding in:"
	elog
	elog "    /etc/conf.d/postgresql-${SLOT}"
	elog
	elog "Then, execute the following command to setup the initial database environment:"
	elog
	elog "    emerge --config =${CATEGORY}/${PF}"
	elog
	elog "The autovacuum function, which was in contrib, has been moved to the main"
	elog "PostgreSQL functions starting with 8.1, and starting with 8.4 is now enabled by"
	elog "default. You can disable it in the cluster's postgresql.conf."
	elog
	elog "The timestamp format is 64 bit integers now. If you upgrade from older"
	elog "databases, this may force you to either do a dump and reload or enable"
	elog "pg_legacytimestamp until you find time to do so. If the database can't start"
	elog "please try enabling pg_legacytimestamp and rebuild."
}

pkg_postrm() {
	eselect postgresql update
}

pkg_config() {
	[[ -f /etc/conf.d/postgresql-${SLOT} ]] && source /etc/conf.d/postgresql-${SLOT}
	[[ -z "${PGDATA}" ]] && PGDATA="/var/lib/postgresql/${SLOT}/data"

	# environment.bz2 may not contain the same locale as the current system
	# locale. Unset and source from the current system locale.
	if [ -f /etc/env.d/02locale ]; then
		unset LANG
		unset LC_CTYPE
		unset LC_NUMERIC
		unset LC_TIME
		unset LC_COLLATE
		unset LC_MONETARY
		unset LC_MESSAGES
		unset LC_ALL
		source /etc/env.d/02locale
		[ -n "${LANG}" ] && export LANG
		[ -n "${LC_CTYPE}" ] && export LC_CTYPE
		[ -n "${LC_NUMERIC}" ] && export LC_NUMERIC
		[ -n "${LC_TIME}" ] && export LC_TIME
		[ -n "${LC_COLLATE}" ] && export LC_COLLATE
		[ -n "${LC_MONETARY}" ] && export LC_MONETARY
		[ -n "${LC_MESSAGES}" ] && export LC_MESSAGES
		[ -n "${LC_ALL}" ] && export LC_ALL
	fi

	einfo "You can pass options to initdb by setting the PG_INITDB_OPTS variable."
	einfo "More information can be found here:"
	einfo "    http://www.postgresql.org/docs/${SLOT}/static/creating-cluster.html"
	einfo "    http://www.postgresql.org/docs/${SLOT}/static/app-initdb.html"
	einfo "Simply add the options you would have added to initdb to the PG_INITDB_OPTS"
	einfo "variable."
	einfo
	einfo "You can change the directory where the database cluster is being created by"
	einfo "setting the PGDATA variable."
	einfo
	einfo "PG_INITDB_OPTS is currently set to:"
	einfo "    \"${PG_INITDB_OPTS}\""
	einfo "and the database cluster will be created in:"
	einfo "    \"${PGDATA}\""
	einfo "Are you ready to continue? (Y/n)"
	read answer
	[ -z $answer ] && answer=Y
	[ "$answer" == "Y" ] || [ "$answer" == "y" ] || die "aborted"

	if [[ -f "${PGDATA}/PG_VERSION" ]] ; then
		eerror "The given directory \"${PGDATA}\" already contains a database cluster."
		die "cluster already exists"
	fi

	[ -z "${PG_MAX_CONNECTIONS}" ] && PG_MAX_CONNECTIONS="128"
	einfo "Checking system parameters..."

	if ! use kernel_linux ; then
		SKIP_SYSTEM_TESTS=yes
		einfo "  Tests not supported on this OS (yet)"
	fi

	if [ -z ${SKIP_SYSTEM_TESTS} ] ; then
		einfo "Checking whether your system supports at least ${PG_MAX_CONNECTIONS} connections..."

		local SEMMSL=$(sysctl -n kernel.sem | cut -f1)
		local SEMMNS=$(sysctl -n kernel.sem | cut -f2)
		local SEMMNI=$(sysctl -n kernel.sem | cut -f4)
		local SHMMAX=$(sysctl -n kernel.shmmax)

		local SEMMSL_MIN=17
		local SEMMNS_MIN=$(( ( ${PG_MAX_CONNECTIONS}/16 ) * 17 ))
		local SEMMNI_MIN=$(( ( ${PG_MAX_CONNECTIONS}+15 ) / 16 ))
		local SHMMAX_MIN=$(( 500000 + ( 30600 * ${PG_MAX_CONNECTIONS} ) ))

		for p in SEMMSL SEMMNS SEMMNI SHMMAX ; do
			if [ $(eval echo \$$p) -lt $(eval echo \$${p}_MIN) ] ; then
				eerror "The value for ${p} $(eval echo \$$p) is below the recommended value $(eval echo \$${p}_MIN)"
				eerror "You have now several options:"
				eerror "  - Change the mentioned system parameter"
				eerror "  - Lower the number of max.connections by setting PG_MAX_CONNECTIONS to a value lower than ${PG_MAX_CONNECTIONS}"
				eerror "  - Set SKIP_SYSTEM_TESTS in case you want to ignore this test completely"
				eerror "More information can be found here:"
				eerror "  http://www.postgresql.org/docs/${SLOT}/static/kernel-resources.html"
				die "System test failed."
			fi
		done
		einfo "Passed."
	else
		einfo "Skipped."
	fi

	einfo "Creating the data directory ..."
	mkdir -p "${PGDATA}"
	chown -Rf postgres:postgres "${PGDATA}"
	chmod 0700 "${PGDATA}"

	einfo "Initializing the database ..."

	su postgres -c "/usr/$(get_libdir)/postgresql-${SLOT}/bin/initdb --pgdata \"${PGDATA}\" ${PG_INITDB_OPTS}"

	einfo
	einfo "You can use the '${ROOT}/etc/init.d/postgresql-${SLOT}' script to run PostgreSQL"
	einfo "instead of 'pg_ctl'."
	einfo
}

src_test() {
	einfo ">>> Test phase [check]: ${CATEGORY}/${PF}"
	PATH="/usr/$(get_libdir)/postgresql-${SLOT}/bin:${PATH}" \
		emake -j1 check  || die "Make check failed. See above for details."

	einfo "Yes, there are other tests which could be run."
	einfo "... and no, we don't plan to add/support them."
	einfo "For now, the main regressions tests will suffice. If you think other tests are"
	einfo "necessary, please submit a bug including a patch for this ebuild to enable them."
}